Kun Qing1,2, Li Pan1,3, Barry
Fetics4, Frank K. Wacker5, Steffi Valdeig5,
Mathew Philip4, Amir Roth4, Erez Nevo4, Dara
L. Kraitchman5, Andre J. van der Kouwe6, Christine H.
Lorenz1,7
1Center for Applied Medical Imaging,
Siemens Corporation, Corporate Research, Baltimore, MD, United States; 2Department
of Biomedical Engineering, University of Virginia, Charlottesville, VA,
United States; 3Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, MD,
United States; 4Robin Medical Inc., Baltimore, MD, United States; 5Department
of Radiology and Radiological Science, Johns Hopkins University, Baltimore,
MD, United States; 6Department of Radiology, Harvard Medical
School, Brookline, MA, United States; 7 Department of Radiology
and Radiological Science, Johns Hopkins University, Baltimore, MD, United
States
The
purpose of the present work was to integrate the EndoScout tracking technique
into a multi-slice interactive real-time sequence to assist MR guided
interventions. The sequence was
modified to provide the excitation gradients fed into the Endodoscout system
for sensor tracking. The position and
orientation of the surgical device is real-time updated and superimposed
either on pre-acquired images or real-time images during the procedures. The multi-slice real-time images were
displayed to enable both surgical device guidance and underlying tissue
monitoring. Animal study suggests that
MR guidance using the integrated system is feasible and effective at
performing interventional procedures.
Keywords